CAS: 88107-10-2 Molecular Formula: C16H22N4O3,C16H22N4O3 Molecular Weight (g/mol): 318.38 InChI Key: MWYHLEQJTQJHSS-UHFFFAOYSA-N Synonym: Tomelukast; IUPAC Name: 1-{2-hydroxy-3-propyl-4-[4-(2H-1,2,3,4-tetrazol-5-yl)butoxy]phenyl}ethan-1-one SMILES: CCCC1=C(O)C(=CC=C1OCCCCC1=NNN=N1)C(C)=O